[llvm-branch-commits] [clang] [llvm] release/20.x: [Hexagon] Set the default compilation target to V68 (#125239) (PR #128597)

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llvmbot wrote:

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Failed to cherry-pick: 1abe7e8debc44d9a7e460c2be0b85b7cf137585b

https://github.com/llvm/llvm-project/actions/runs/14003839625

Please manually backport the fix and push it to your github fork.  Once this is done, please create a [pull request](https://github.com/llvm/llvm-project/compare)

https://github.com/llvm/llvm-project/pull/128597